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Finding the Fourth Proportional to 832,885.60, 1,249,911.60 and 359,910.40

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Solution

The fourth proportional to 832,885.60, 1,249,911.60 and 359,910.40 is: 540,117.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,885.60 : 1,249,911.60 = 359,910.40 : x
  2. Step 2: Convert to fraction form
    832,885.60/1,249,911.60 = 359,910.40/x
  3. Step 3: Cross multiply
    832,885.60x = 1,249,911.60 × 359,910.40
  4. Step 4: Simplify right side
    832,885.60x = 449,856,183,920.64
  5. Step 5: Solve for x
    x = 449,856,183,920.64/832,885.60
  6. Step 6: Final answer
    x = 540,117.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.